layout/mathml/nsMathMLmencloseFrame.h@925c144e1f1f (annotated)
layout/mathml/nsMathMLmencloseFrame.h
Fri, 16 Jan 2015 18:13:44 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 18:13:44 +0100
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
- permissions
- -rw-r--r--
Integrate suggestion from review to improve consistency with existing code.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef nsMathMLmencloseFrame_h___ |
| michael@0 | 8 | #define nsMathMLmencloseFrame_h___ |
| michael@0 | 9 | |
| michael@0 | 10 | #include "mozilla/Attributes.h" |
| michael@0 | 11 | #include "nsMathMLContainerFrame.h" |
| michael@0 | 12 | |
| michael@0 | 13 | // |
| michael@0 | 14 | // <menclose> -- enclose content with a stretching symbol such |
| michael@0 | 15 | // as a long division sign. |
| michael@0 | 16 | // |
| michael@0 | 17 | |
| michael@0 | 18 | /* |
| michael@0 | 19 | The MathML REC describes: |
| michael@0 | 20 | |
| michael@0 | 21 | The menclose element renders its content inside the enclosing notation |
| michael@0 | 22 | specified by its notation attribute. menclose accepts any number of arguments; |
| michael@0 | 23 | if this number is not 1, its contents are treated as a single "inferred mrow" |
| michael@0 | 24 | containing its arguments, as described in Section 3.1.3 Required Arguments. |
| michael@0 | 25 | */ |
| michael@0 | 26 | |
| michael@0 | 27 | enum nsMencloseNotation |
| michael@0 | 28 | { |
| michael@0 | 29 | NOTATION_LONGDIV = 0x1, |
| michael@0 | 30 | NOTATION_RADICAL = 0x2, |
| michael@0 | 31 | NOTATION_ROUNDEDBOX = 0x4, |
| michael@0 | 32 | NOTATION_CIRCLE = 0x8, |
| michael@0 | 33 | NOTATION_LEFT = 0x10, |
| michael@0 | 34 | NOTATION_RIGHT = 0x20, |
| michael@0 | 35 | NOTATION_TOP = 0x40, |
| michael@0 | 36 | NOTATION_BOTTOM = 0x80, |
| michael@0 | 37 | NOTATION_UPDIAGONALSTRIKE = 0x100, |
| michael@0 | 38 | NOTATION_DOWNDIAGONALSTRIKE = 0x200, |
| michael@0 | 39 | NOTATION_VERTICALSTRIKE = 0x400, |
| michael@0 | 40 | NOTATION_HORIZONTALSTRIKE = 0x800, |
| michael@0 | 41 | NOTATION_UPDIAGONALARROW = 0x1000 |
| michael@0 | 42 | }; |
| michael@0 | 43 | |
| michael@0 | 44 | class nsMathMLmencloseFrame : public nsMathMLContainerFrame { |
| michael@0 | 45 | public: |
| michael@0 | 46 | NS_DECL_FRAMEARENA_HELPERS |
| michael@0 | 47 | |
| michael@0 | 48 | friend nsIFrame* NS_NewMathMLmencloseFrame(nsIPresShell* aPresShell, |
| michael@0 | 49 | nsStyleContext* aContext); |
| michael@0 | 50 | |
| michael@0 | 51 | virtual nsresult |
| michael@0 | 52 | Place(nsRenderingContext& aRenderingContext, |
| michael@0 | 53 | bool aPlaceOrigin, |
| michael@0 | 54 | nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE; |
| michael@0 | 55 | |
| michael@0 | 56 | virtual nsresult |
| michael@0 | 57 | MeasureForWidth(nsRenderingContext& aRenderingContext, |
| michael@0 | 58 | nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE; |
| michael@0 | 59 | |
| michael@0 | 60 | virtual nsresult |
| michael@0 | 61 | AttributeChanged(int32_t aNameSpaceID, |
| michael@0 | 62 | nsIAtom* aAttribute, |
| michael@0 | 63 | int32_t aModType) MOZ_OVERRIDE; |
| michael@0 | 64 | |
| michael@0 | 65 | virtual void |
| michael@0 | 66 | SetAdditionalStyleContext(int32_t aIndex, |
| michael@0 | 67 | nsStyleContext* aStyleContext) MOZ_OVERRIDE; |
| michael@0 | 68 | virtual nsStyleContext* |
| michael@0 | 69 | GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE; |
| michael@0 | 70 | |
| michael@0 | 71 | virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, |
| michael@0 | 72 | const nsRect& aDirtyRect, |
| michael@0 | 73 | const nsDisplayListSet& aLists) MOZ_OVERRIDE; |
| michael@0 | 74 | |
| michael@0 | 75 | NS_IMETHOD |
| michael@0 | 76 | InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE; |
| michael@0 | 77 | |
| michael@0 | 78 | NS_IMETHOD |
| michael@0 | 79 | TransmitAutomaticData() MOZ_OVERRIDE; |
| michael@0 | 80 | |
| michael@0 | 81 | virtual nscoord |
| michael@0 | 82 | FixInterFrameSpacing(nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE; |
| michael@0 | 83 | |
| michael@0 | 84 | bool |
| michael@0 | 85 | IsMrowLike() MOZ_OVERRIDE { |
| michael@0 | 86 | return mFrames.FirstChild() != mFrames.LastChild() || |
| michael@0 | 87 | !mFrames.FirstChild(); |
| michael@0 | 88 | } |
| michael@0 | 89 | |
| michael@0 | 90 | protected: |
| michael@0 | 91 | nsMathMLmencloseFrame(nsStyleContext* aContext); |
| michael@0 | 92 | virtual ~nsMathMLmencloseFrame(); |
| michael@0 | 93 | |
| michael@0 | 94 | nsresult PlaceInternal(nsRenderingContext& aRenderingContext, |
| michael@0 | 95 | bool aPlaceOrigin, |
| michael@0 | 96 | nsHTMLReflowMetrics& aDesiredSize, |
| michael@0 | 97 | bool aWidthOnly); |
| michael@0 | 98 | |
| michael@0 | 99 | // functions to parse the "notation" attribute. |
| michael@0 | 100 | nsresult AddNotation(const nsAString& aNotation); |
| michael@0 | 101 | void InitNotations(); |
| michael@0 | 102 | |
| michael@0 | 103 | // Description of the notations to draw |
| michael@0 | 104 | uint32_t mNotationsToDraw; |
| michael@0 | 105 | bool IsToDraw(nsMencloseNotation mask) |
| michael@0 | 106 | { |
| michael@0 | 107 | return mask & mNotationsToDraw; |
| michael@0 | 108 | } |
| michael@0 | 109 | |
| michael@0 | 110 | nscoord mRuleThickness; |
| michael@0 | 111 | nsTArray<nsMathMLChar> mMathMLChar; |
| michael@0 | 112 | int8_t mLongDivCharIndex, mRadicalCharIndex; |
| michael@0 | 113 | nscoord mContentWidth; |
| michael@0 | 114 | nsresult AllocateMathMLChar(nsMencloseNotation mask); |
| michael@0 | 115 | |
| michael@0 | 116 | // Display a frame of the specified type. |
| michael@0 | 117 | // @param aType Type of frame to display |
| michael@0 | 118 | void DisplayNotation(nsDisplayListBuilder* aBuilder, |
| michael@0 | 119 | nsIFrame* aFrame, const nsRect& aRect, |
| michael@0 | 120 | const nsDisplayListSet& aLists, |
| michael@0 | 121 | nscoord aThickness, nsMencloseNotation aType); |
| michael@0 | 122 | }; |
| michael@0 | 123 | |
| michael@0 | 124 | #endif /* nsMathMLmencloseFrame_h___ */ |
